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D We have all seen it-a front-page headline from a newspaper announcing a 'breakthrough'in the fight against a major dis ease.A common thread connects many of these reported develop ments-whether that is cancer or Alzheimer's. Namely,the assumption that because of testing on animals in laboratories there have been new solutions that will revolution- ize outcomes for human health is false.The expectation of clini- cal efficacy (through animal testing is dangerous.It is not always based on enough evidence and needs to continue animal testing on a mass scale.Objectively,those who support the use of animal testing in medical research,do so on the basis that it is furthering advances in the treatment of humans.